Home / 13,790.48-19,031.01-7,502.87

Finding the Fourth Proportional to 13,790.48, 19,031.01 and 7,502.87

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Solution

The fourth proportional to 13,790.48, 19,031.01 and 7,502.87 is: 10,354.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790.48 : 19,031.01 = 7,502.87 : x
  2. Step 2: Convert to fraction form
    13,790.48/19,031.01 = 7,502.87/x
  3. Step 3: Cross multiply
    13,790.48x = 19,031.01 × 7,502.87
  4. Step 4: Simplify right side
    13,790.48x = 142,787,194.00
  5. Step 5: Solve for x
    x = 142,787,194.00/13,790.48
  6. Step 6: Final answer
    x = 10,354.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.